Evaluación de la persistencia en el suelo de cuatro nematicidas comerciales para el manejo de nemátodos fitoparásitos
| dc.contributor.advisor | Lombeida García, Emma | |
| dc.contributor.author | Monar Chica, Erwing Enrique | |
| dc.date.accessioned | 2021-01-19T19:50:39Z | |
| dc.date.available | 2021-01-19T19:50:39Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/9098 | |
| dc.description | The work was carried out in the nursery of the Faculty of Agricultural Sciences of the Technical University of Babahoyo. The main objective was to evaluate the persistence of the nematicidas terbufos (Counter 15% G.), cadusafos (Rugby 10% G), etoprop (Mocap 15% G.) and fluopyram (Verango 50 SC) in the soil; to determine the population density of Meloidogyne spp, in tomato roots for eight days after the loss of persistence, and to evaluate the effect of these nematicidas on nematode reproduction. The doses of the granulated nematicidas were 2.0 g p.c/plant and Verango 0.03 cc/plant with three repetitions. Meloidogyne spp. and tomato cv. "Floradade" as references, solarized soil, seedlings made in germination trays and Compost as substrate. Each product was sprinkled in 63 plastic bags of 3 kg capacity, every two days after application a tomato plant was transplanted with three repetitions and 10 cm3 of soil infected with 1000 J2 of Meloidogyne spp was placed around the roots. At 15 days of inoculation of the nematode, the plants were extracted until galls were found on the roots. The data evaluated were number of galls and population density of the nematode in roots and soil. According to the results obtained, the persistence time presented by the nematicidas was low. 36 days were recorded for terbufos, 26 days for etoprop and 20 days for cadusafos and fluopyram (Verango). The population density of Meloidogyne spp. in tomato roots, eight days after the loss of persistence of the nematicidas terbufos, etoprop, cadusafos and Verango was 183, 317, 558 and 567 J2/plant, respectively. The nematicidas tested considerably affected the entry of the inoculated nematodes into the roots and the its reproduction, while in the control in most evaluations this value exceeded 1. | es_ES |
| dc.description | The work was carried out in the nursery of the Faculty of Agricultural Sciences of the Technical University of Babahoyo. The main objective was to evaluate the persistence of the nematicidas terbufos (Counter 15% G.), cadusafos (Rugby 10% G), etoprop (Mocap 15% G.) and fluopyram (Verango 50 SC) in the soil; to determine the population density of Meloidogyne spp, in tomato roots for eight days after the loss of persistence, and to evaluate the effect of these nematicidas on nematode reproduction. The doses of the granulated nematicidas were 2.0 g p.c/plant and Verango 0.03 cc/plant with three repetitions. Meloidogyne spp. and tomato cv. "Floradade" as references, solarized soil, seedlings made in germination trays and Compost as substrate. Each product was sprinkled in 63 plastic bags of 3 kg capacity, every two days after application a tomato plant was transplanted with three repetitions and 10 cm3 of soil infected with 1000 J2 of Meloidogyne spp was placed around the roots. At 15 days of inoculation of the nematode, the plants were extracted until galls were found on the roots. The data evaluated were number of galls and population density of the nematode in roots and soil. According to the results obtained, the persistence time presented by the nematicidas was low. 36 days were recorded for terbufos, 26 days for etoprop and 20 days for cadusafos and fluopyram (Verango). The population density of Meloidogyne spp. in tomato roots, eight days after the loss of persistence of the nematicidas terbufos, etoprop, cadusafos and Verango was 183, 317, 558 and 567 J2/plant, respectively. The nematicidas tested considerably affected the entry of the inoculated nematodes into the roots and the its reproduction, while in the control in most evaluations this value exceeded 1. | es_ES |
| dc.description.abstract | El trabajo se realizó en el vivero de la Facultad de Ciencias Agropecuarias de la Universidad Técnica de Babahoyo. El objetivo principal fue evaluar la persistencia de los nematicidas terbufos (Counter 15% G.), cadusafos (Rugby 10% G), etoprop (Mocap 15% G.) y fluopyram (Verango 50 SC) en el suelo; determinar la densidad poblacional Meloidogyne spp, en las raíces de tomate durante ocho días después de la perdida de persistencia, y evaluar el efecto de estos nematicidas en la reproducción del nemátodo. Las dosis de los nematicidas granulados fueron 2,0 g p.c/planta y de Verango 0,03 cc/planta con tres repeticiones. Se utilizó a Meloidogyne spp. y tomate cv. “Floradade” como referenciales, suelo solarizado, semilleros elaborados en bandejas germinativas y Compost como substrato. Cada producto se asperjó en 63 fundas plásticas de 3 kg de capacidad, cada dos días después de aplicación se trasplantó una planta de tomate con tres repeticiones y se colocó alrededor de la raíces 10 cm3 de suelo infectado con 1000 J2 de Meloidogyne spp. A los 15 días de inoculación del nemátodo se extrajeron las plantas hasta encontrar agallas en las raíces. Los datos evaluados fueron número de agallas y densidad poblacional del nemátodo en raíces y suelo. Según los resultados obtenidos, el tiempo de persistencia que presentaron los nematicidas fue bajo. Se registró 36 días para terbufos, 26 días etoprop y 20 días para cadusafos y fluopyram (Verango). La densidad poblacional de Meloidogyne spp. en raíces de tomate a los ocho días de la pérdida de persistencia de los nematicidas terbufos, etoprop, cadusafos y Verango fue de 183, 317, 558 y 567 J2/planta, respectivamente. Los nematicidas probados afectaron considerablemente el ingreso de los nemátodos inoculados en las raíces y la reproducción de los mismos, mientras que en el testigo en la mayoría de evaluaciones este valor superó a 1. | es_ES |
| dc.format.extent | 46 p. | es_ES |
| dc.language.iso | es | es_ES |
| dc.publisher | BABAHOYO:UTB,2021 | es_ES |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Ecuador | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ | * |
| dc.subject | Densidad poblacional | es_ES |
| dc.subject | Nemátodo agallador de raíces | es_ES |
| dc.subject | Persistencia | es_ES |
| dc.subject | Suelos | es_ES |
| dc.title | Evaluación de la persistencia en el suelo de cuatro nematicidas comerciales para el manejo de nemátodos fitoparásitos | es_ES |
| dc.type | bachelorThesis | es_ES |
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